Electric heater



J. C. MORGAN ELECTR I C HEATER Aug. 22, 1933.

2 Sheets-Sheet 1 Filed March 15, 1928 -fnuelzio oym,

M Zforvzqy Aug. 22, 1933. c MORGAN I 1,923,874 I ELECTRIC HEATER Filed March 15 1928 ZSheets-Sheet- 2 ufoin 61/7107 an Patented Aug. 22, 1933 raw OFFICE 7 1,923,874 ELECTRIC HEATER.

John 0. Morgan, Los Angeles, Calif.

Application March 15, 1928.

7 Claims.

This invention relates more particularly to a foldable electric heater.

The general object of my invention is to provide an electric heater which may be readily knocked down and folded into a small compact bundle for carrying and shipping purposes. I thereby provide a novel device that may be con veniently packed in a grip and carried from place to place and unfolded and set up for use when desired.

A more particular object is to provide a novel electric heater of the character stated which will be simple in construction, economical and highly practical and efficient in operation, andwhich may be easily and quickly collapsed and set up.

The invention is particularly useful for travelers who may o from place to place and find accommodations insuficiently heated or not heated at all; and an object of my invention is to provide a novel heater that may be conveniently carried by such travelers and attached to the usual electric light socket or plug for heating purposes.

Other objects, advantages and features of invention may appear from the accompanying drawings, the subjoined detail descriptionand the appended claims.

The accompanying drawings illustrate the invention in a form I at present deem preferable.

Figure 1 is a front elevation of an electric heater embodying my invention and shown in unfolded position ready for use.

Fig. 2 is a side elevation of the heater shown in Fig. 1.

Fig. 3 is a front elevation detail view of the v heater reflector in folded and detached position.

Fig. 4 is an edge view of the detached folded reflector shown in Fig. 3.

Fig. 5 is an elevation of the heater stand in folded position.

Fig. 6 is a horizontal section of the stand taken on line 66, Fig. 5 looking in the direction of the arrows.

Fig. 7 is a side elevational View of the heater guard shown detached and in folded position.

Fig. 8 is a fragmentary sectional view of adjacent sector plates of the reflector and one guard wire taken on line 8-8, Fig. 2,v looking in the direction of the arrows.

Fig. 9 is a fragmentary rearview of adjacent sector plates of the reflector in unfolded position showing the means for holding said sector plates together and in unfolded position.

Fig. 10 is a fragmentary longitudinal section Serial No. 261,817

of the folded reflector sections taken on line 10-l0, Fig. 3.

Fig. 11 is a fragmentary sectional view taken on line lll1, Fig. 9.

My invention comprises generally a foldable stand 1, a foldable reflector 2, and a foldable guard 3.

- The stand 1 comprises a standard e, legs 5, preferably three in number, a spider 6 slidably mounted on said stand and to which spider said legs are pivoted at 7 by any suitable means, such as the rivets shown; and also includes on the lower end of said standard, spring locking means 8 for the legs 5. The spider 6 is formed with a dependingsleeve 9 which slidably surrounds the standard 4 and said sleeve is provided with bayonet slots 10 and may be formed on its lower end with strengthening means in the form of an external flange 11 which is provided with slots 12 in registration with the bay onet slots 10. The locking means 8 comprises a pair of collars l3 and 14, a spring 15 surrounding the standard 4 and operating between said collars 13 and 14, and a pair of pins 16 and 17 extending through the standard and against which pins the spring 15 normally urges and holds the collars 13 and 14. The upper end 18 of the standard 4 is provided with a fork 18 througfh which extends a bolt 19 of any suitable design, the head 19a of which engages one mem ber of said fork, while a butterfly nut 20 screws on the end of said bolt against the other fork member. The inner ends 511 of the legs 5 are inclined for engaging the inner ends 6a. of slots (it formed in the spider 6 and in which slots said legs are pivoted.

The reflector 2 comprises a central mounting 21 and a plurality of concave-convex sector plates 22 pivotally mounted on said mounting. The mounting 21 preferably comprises a tube 23 provided with an externalshoulder 24 formed on its inner end, a washer 25surrounding .the outer portion of said tube, and an endwise adjustable ring 26 detachably secured onvthe outer end of said tube by means of screws 27. The plates 22 are formed with central open ings 28 through which the tube 23 extends with the plates arranged in super-imposed relation. The innermost plate engages the shoulder 24 and the outermost plate being engaged by the washer 25 and held in frictional engagement therewith byring 26, whereby the plates are turnably and detachably mounted onthe mounting 21. The washer 25 is formed at its lower edge with supporting means, such as a knuckle 29 adapted to-fit within the fork 18 and to receive the bolt 19. A circular handle 30 is hinged to the upper edge of the washer 25, at 30a and said handle 30 is-adapted when folded to encircle the tube 23 as shown in Fig. 3 and Fig. 10. The outermost plate 22 is provided in its outer corners with slots 31 and 32 while headed pins 33 and 34 are secured to the outer side of the innermost plate 22" in the respective outercorners thereof. The remaining plates 22 are each provided in one outer corner with a slot 32' and a headed pin 34' is secured in the other outer corner and to the outer side thereof. The

slots 31, 32, and 32 are enlarged at one end as at 35 to permit the heads of the pins 33, 34 and 34 to be inserted therethrough.

The foldable guard 3 comprises a central tie' ring 36 and a plurality of openings 38 to receive closed hooks 39 on the upper ends of the guard wires 37 whereby said wires are pivotally and foldably connected to the ring 36. The outer endsof the ,guardwires, 37 are bent outwardly and backwardly to form V-shaped engaging members 40 the extremities of which members being bent, outwardly and upon themselves into stops 41.

My heater employs 42, plug 43, wires 44v and 45 and any suitable electrical unit, such as. a heating coil 46 which fits into said socket. 1

My heater is'unfolded and set up as follows:

Referring first to Fig. 5 in which the stand 1 is shown folded, the spider 6 and sleeve 9 are, first slid down the standard until the flange inner ends 501. engage the innerends of the spider slots 61) whereby the legs are held in' standard supporting position as shown inFigs. 1 and 2.

Referring to Figs. 3 and 4 in which the reflector is shown fold-ed, the plates 22 are turned 5 in the mounting 21 until the adjacent, edges thereof overlap each other with the pin 33 in register with the enlarged end 35 of slot 31 and the pin 34 in register with the enlarged end 35 of a slot 32 respectively. The pin 33 is then inserted through the enlarged end 35 into slot 31 and the pin 34' inserted through the enlarged end 3 5 of slots 32 and 32-. The plates 22 are turned away from each other until a pin enters.

- is screwed on the threaded end of the bolt 19 against one member of the fork 18 until the knuckle is clamped firmly in the fork thus detachably securing the reflector on the stand at the proper'angle (see Fig. 2).

Referring to Fig. 7 the guard wires 37 are a suitable electric socket then swung to unfolded position and their engaging members 40 inserted from the inside of the reflector through the enlarged ends 35 of the slots 31, 32 and 32 respectively with said membersv engaging the edges of the plates 22 and holding them under tension in unfolded position (see Figs. 1, 2, 8,.and 9). This construction maintains the reflector in circular position and prevents accidental disengagement of the reflector sector plates.

The socket 42 is then inserted through the mounting tube 23 into the reflector and is fitted in said tube where it may be retained by further tightening of a screw 27. The electrical unit or heating coil 46 is then screwed or otherwise secured into the socket 42 and upon inserting the plug 43 into a service socket, electric current is supplied to the coil 46 and the heater is put in operation.

To collapse or knock down and fold up the heater the above described operations are reversed.

By the foregoing construction I am able to construct an electric heater having a 10 inch reflector and collapse the sameinto a small compact package having approximately the following dimensions, to wit; three inches in width, by seven inches in length and five inches in depth. V

I claim. i

1. As an article. of manufacture, a reflector comprising a mounting; a plurality of reflector sections turnably mounted on said mounting so that they maybe folded into superimposed relation and unfolded, around said mounting, said sections being provided with cooperating slots. and pins at their outer corners for engagementwith each other to hold the edges of said sections together.

2. In an electric heater, a reflector comprising a mounting; a plurality of reflector sections turnably mounted on. said mounting so that they may be folded into superimposedrelation and unfolded around said mounting so that the edges on adjacent sections overlap, said sections being provided with cooperating slotsand pins for engagement with each other to hold the overlapping edges of said sections together, said slots being enlarged at one end to permit entrance to and exit from said slots of said pins. p w

3. In an electric heater, a reflector comprising a mounting, a plurality of reflector sections connected to said mounting so that they may be folded into superimposed relation and unfolded to constitute a circular shade, said sections being provided with a slot adjacent one corner thereof; and a guard for said reflector comiis prising a tie member and a plurality of. guard wires foldably connected at one end to said member and being adapted at their other end to be inserted into said slots to prevent accidental movement of said reflector sections relative .to

each other.

4. In an electric heater, a reflector comprising a mounting, a plurality of reflector sections connected to said mounting so that they may be folded into superimposed relation and unfolded to constitute a circular shade; means comprising. co-operating, slots and pins for se-' curing the outer edges of said sections in unfolded position, and a guard for saidv reflector comprising a tie member and a plurality of guard wires foldably connected at one end to said its member and being adapted at their other end 1:50

to be respectively inserted in a slot in said sections and adapted to prevent accidental movement of said sections relative to each other.

5. In an electric heater, a reflector provided with slots; a reflector guard comprising a ring; a plurality of guard Wires foldably connected at one end to said ring; and stops in the free ends of said guard wires adapted to be inserted in the slots in said reflector under tension to retain said guard in position.

6. In an electric heater, a reflector comprising a mounting; a plurality of reflector sections turnably mounted on said mounting so that they may be folded into superimposed relation and unfolded around said mounting into a circular reflector, said sections being provided with cooperating slots and pins at ad-- jacent edges of said sections for engagement with each other to hold said sections together; a guard for said reflector comprising a plurality of guard wires arranged to project into one end of said slots for locking said sections against superimposed relation and unfolded around said mounting; means to support said reflector; and a handle, member pivotally connected to said vmounting, said handle being adapted to be moved into folded position to encircle said mounting.

JOHN C. MORGAN. 

